摘要
本研究以青海省境内不同生态区的金露梅叶为研究对象,分析其生物活性成分含量以及差异。结果表明:乐都县金露梅叶中总氨基酸(11.95%)、总黄酮(18.88 mg/g)、多酚(10.6%)、维生素C (5.25 mg/100 g)、儿茶素(1.16%)、单宁(13.60%)和芦丁(0.077%)的含量最高,蛋白质含量以玉树金露梅叶中最高,达到16.9%;而总氨基酸(7.91%)、总黄酮(12.13%)、茶多酚(6.0%)、维生素C(4.17 mg/100 g)、儿茶素(0.20%)和芦丁(0.0129%)的含量在湟中县金露梅叶中最低。通过方差分析可知,不同地区金露梅叶成分含量都存在着显著差异(p <0.05)。主成分分析筛选出4个指标(总黄酮、儿茶素、维生素C、蛋白质)代表金露梅叶的品质。金露梅叶的生物活性成分含量较高,值得进一步深入研究和开发。
In this study,Potentilla fruticosa leaves in different ecological areas in Qinghai province were selected as the research target.The contents and difference of bioactive components were analyzed and evaluated.The experimental results indicated that total amino acids( 11.95%),total flavonoids( 18.88 mg/g),polyphenols( 10.6%),vitamin C( 5.25 mg/100 g),catechin( 1.16%),tannin( 13.60%) and rutin( 0.0773%) were the highest in the Potentilla fruticosa leaves in Ledu county,Qinghai province.The contents of protein was the highest in the Potentilla fruticosa leaves in yushu county,which reached 16.9%.The total amino acid( 7.91%),total flavonoids( 12.13%),tea polyphenols( 6%),vitamin C( 4.17 mg/100 g),catechin( 0.20%)and rutin( 0.0129%) the contents of Potentilla fruticosa leaves was lowest in Huangzhong county of Qinghai province.According to the analysis of variance,there were significant differences in the contents of components in the Potentilla fruticosa leaves in different areas( p < 0.05).Four indexes( total flavonoids,catechins,vitamin C,protein) were selected by principal component analysis to represents the quality of the Potentilla fruticosa leaves.The contents of bioactive components in leaves of Potentilla fruticosa was high,which would deserve further research and development.
引文
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